Performance-Monitoring Counters Library, for Intel/AMD Processors and Linux

This example introduces
   rabbit command-line options --Enable m,n --PC m,n --APIC m,n

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Command-Line Options

--Enable m,n

  Pentium Pro/II/III and Athlon only.  Set m = 0 to disable both performance
  counters (Intel) or all four performance counters (Athlon).

--PC m,n

  Exert control over the processor's PM0 and PM1 output pins (PC = Pin
  Control).  They can be configured to signal each time the counter
  increments, or to signal on overflow.  Probably, no one is watching.
  At one time, Intel built a special socket that paid attention, and
  rerouted the signals.

--APIC m,n

  Pentium Pro/II/III and Athlon only.  Exert control over the processor's
  local Advanced Programmable Interrupt Controller.  Requires a patched
  version of Linux.


Notes

  Avoid these options.